Different service providers can mean different features. 1 Specifications may vary dependent on model/cover. Network, subscription and SIM card or service provider dependent feature. Not available in all areas. 2 All talk and standby times are quoted in Digital Mode, and are approximate. Battery performance depends on network configuration, signal strength, operating temperature, features selected, and voice, data and other application usage patterns. Talk times and standby times will be lower when in Analog Mode. 3 The use of wireless devices and their accessories may be prohibited or restricted in certain areas. Always obey the laws and regulations on the use of these products.